Absorbent Strip (e.g., Cellulose Acetate, Paper Strip, Etc.) Type Patents (Class 204/641)
  • Patent number: 10921285
    Abstract: Provided is a novel sample separating instrument and a novel sample analyzing device each of which can be suitably used for emission transfer. A sample separating instrument (100) for use in emission transfer includes: a separation medium (10); and a holding section (21), the holding section (21) having an opening (21b) on an end part side, the separation medium (10) having an exposed part (10b), the exposed part (10b) having extending parts (10a) which extend on respective edge parts (21a) of the holding section (21) which edge parts are located on respective both sides of the opening (21b).
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: February 16, 2021
    Assignee: Merck Ltd.
    Inventors: Kimihiko Yabe, Hiroshi Ohki, Takateru Matsunaga, Mieko Otonashi, Hideki Kinoshita, Toru Watsuji
  • Patent number: 10067087
    Abstract: A biomolecule analyzer (100) includes an arm part (20-23, 66) retaining a transfer membrane (1) that is arranged at a position opposing a first opening (50a), and a drive unit (62-65) that is provided below an anode buffer tank (30), and drives the arm part in a substantially horizontal direction, in which the arm part passes along outer sides of side walls of the anode buffer tank (30), wraps around upper ends of the side walls and links at inner walls of the side wall.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 4, 2018
    Assignee: SHARP LIFE SCIENCE CORPORATION
    Inventors: Shinichi Goto, Hideki Kinoshita, Mieko Hirabayashi, Kouhei Kageyama, Taiga Tominaga
  • Patent number: 9400277
    Abstract: Methods for detecting one or more analytes, such as a protein, in a fluid path are provided. The methods include resolving, immobilizing and detecting one or more analytes in a fluid path, such as a capillary. Also included are devices and kits for performing such assays.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: July 26, 2016
    Assignee: ProteinSimple
    Inventors: Tom Weisan Yang, Arunashree Bhamidipati, Andrei V. Bordunov, James Eugene Knittle, Roger A. O'Neill, Karl O. Voss
  • Patent number: 9040108
    Abstract: The invention proposes a device for decaffeinating a liquid. The device includes at least one cathode electrode and at least one anode electrode which are spaced apart and which are immersed in the liquid; a power supply coupled to the at least one cathode electrode and the at least one anode electrode and configured to apply power thereto, wherein the at least one cathode electrode and the at least one anode electrode are configured to generate an electric field in the liquid upon application of the power to attract caffeine molecules in the liquid to the at least one cathode electrode; wherein the at least one cathode electrode is made of or coated with an absorbing material configured to absorb at least part of the caffeine molecules that are attracted to the at least one cathode electrode.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 26, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Guangwei Wang, Declan Patrick Kelly
  • Publication number: 20150096892
    Abstract: In described embodiment a method and an apparatus are provided for blood characterization. A closed loop electrical circuit employs as part of the circuit, a time varying resistive path that is made out of blood constituents and other chemicals. As the blood characteristics are changing, the resistance of the electrical path is also changing. The resistance change over a predefined time window is used to determine the blood thickness information. The resistance value change over another predefined time window is used to determine the blood density information. Presence as well as absence of blood constituents is determined from the resistance change over a pre-defined time window.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 9, 2015
    Inventors: Fahim U. Mobin, Irfan A. Mobin
  • Publication number: 20140220199
    Abstract: The invention proposes a device for decaffeinating a liquid. The device comprises at least one cathode electrode and at least one anode electrode which are spaced apart and which are immersed in the liquid; a power supply coupled to the at least one cathode electrode and the at least one anode electrode and configured to apply power thereto, wherein the at least one cathode electrode and the at least one anode electrode are configured to generate an electric field in the liquid upon application of the power to attract caffeine molecules in the liquid to the at least one cathode electrode; wherein the at least one cathode electrode is made of or coated with an absorbing material configured to absorb at least part of the caffeine molecules that are attracted to the at least one cathode electrode.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 7, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Guangwei Wang, Declan Patrick Kelly
  • Patent number: 8702950
    Abstract: A device for electrophoresis applies a voltage to a medium in contact with a plurality of electric conductors so that a potential of adjacent conductors is within a certain range. This allows preventing decline in electrophoresis speed. A device for electrophoresis and transfer includes an electrode having a plurality of electrode regions being insulated one another and arranged in a specific direction. This allows providing a practical and easy-to-use device for electrophoresis and transfer. A device for transfer alters an applied voltage or applied voltage duration to a certain position to another position. This allows improving transfer efficiency.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 22, 2014
    Assignees: Sharp Kabushiki Kaisha, Toppan Printing Co., Ltd.
    Inventors: Yuji Maruo, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Kenji Yokoyama, Koji Sakairi, Satonari Akutsu
  • Patent number: 8449748
    Abstract: A sample separation/adsorption appliance (100) according to one embodiment of the present invention includes: a first buffer solution tank (103) equipped with a first electrode (101) and used for holding a first buffer solution; a second buffer solution tank (104) equipped with a second electrode (102) and used for holding a second buffer solution; a sample separation section (110) that holds a sample separation medium (131) for separating a sample; and a conductive section (120) that holds a conductive medium (133), wherein: the sample separation medium (131) and the conductive medium (133) are in contact with the sample adsorption member (132), respectively, on the opposite sides thereof; an end of the sample separation medium (131) opposite to an end being in contact with the sample adsorption member (132) is connected to an inside of the first buffer solution tank (103); and an end of the conductive medium (133) opposite to an end being in contact with the sample adsorption member (132) is connected to an
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: May 28, 2013
    Assignees: Sharp Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Uichi Midorikawa, Takateru Matsunaga, Yuji Maruo, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Kenji Yokoyama
  • Publication number: 20110233062
    Abstract: A biological molecule separation apparatus for separating a biological molecule of one embodiment of the present invention has a buffer solution chamber receiving a buffer solution, a separation electrode arranged in the buffer solution chamber, a biological molecule separation medium for separating a biological molecule, a biological molecule adsorption film for adsorbing a biological molecule, a pair of transfer electrodes having a plurality of line shaped conductors extending in a direction perpendicular to a first direction, the conductors being arranged in the direction perpendicular to the first direction, and a separation part which holds the transfer electrode, the biological molecule adsorption film, the medium and the transfer electrode, wherein the transfer electrode, the biological molecule adsorption film, the medium and the transfer electrode are stacked in this order.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 29, 2011
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Koji Sakairi, Satonari Akutsu, Atsunori Hiratsuka, Kenji Yokoyama, Yuji Maruo, Hiroshi Ohki
  • Publication number: 20110209999
    Abstract: A lateral flow device includes a porous medium layer having a two-dimensional shape in plan view that is capable of supporting near-constant velocity capillary-driven fluid flow and can be combined with electrodes in a manner to achieve to achieve electrokinetic molecule separation.
    Type: Application
    Filed: January 10, 2011
    Publication date: September 1, 2011
    Inventors: Scott S. Sibbett, Gabriel P. Lopez
  • Publication number: 20110094887
    Abstract: A sample separation/adsorption appliance (100) according to one embodiment of the present invention includes: a first buffer solution tank (103) equipped with a first electrode (101) and used for holding a first buffer solution; a second buffer solution tank (104) equipped with a second electrode (102) and used for holding a second buffer solution; a sample separation section (110) that holds a sample separation medium (131) for separating a sample; and a conductive section (120) that holds a conductive medium (133), wherein: the sample separation medium (131) and the conductive medium (133) are in contact with the sample adsorption member (132), respectively, on the opposite sides thereof; an end of the sample separation medium (131) opposite to an end being in contact with the sample adsorption member (132) is connected to an inside of the first buffer solution tank (103); and an end of the conductive medium (133) opposite to an end being in contact with the sample adsorption member (132) is connected to an
    Type: Application
    Filed: June 1, 2009
    Publication date: April 28, 2011
    Inventors: Uichi Midorikawa, Takateru Matsunaga, Yuji Maruo, Yutaka Unuma, Atsunori Hiratsuka, Hideki Kinoshita, Kenji Yokoyama
  • Patent number: 7732060
    Abstract: A gaseous component treatment sheet of the present invention has a gas-permeable base film and a particulate remover for removing a predetermined gaseous component, and the particulate remover is dispersed in the base film. A protective layer and/or an adhesive layer can be laminated further on the base film. Since the gaseous component treatment sheet is a sheet-like member including the base film for holding the particulate remover, the size and the shape can be adjusted easily.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: June 8, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Hiroyuki Nishii, Hiroaki Mashiko
  • Publication number: 20090314641
    Abstract: Methods and apparatus are presented that facilitate electrophoresis of prior-cast, hydratable separation media, usefully immobilized pH gradient (IPG) strips. The method exploits the swelling of prior-cast, hydratable separation media upon rehydration to help lodge the media in an enclosing member that permits spaced electrical communication with the enclosed separation media. The electrical communication permits a voltage gradient to be established in the enclosed separation medium sufficient to effect separation of analytes therein. Cassettes, buffer cores, electrophoresis systems and kits are presented for effecting the methods of the invention.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 24, 2009
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Regina D. Rooney, Bradley S. Scott, Joseph W. Amshey, Thomas R. Jackson, Sheldon Engelhorn
  • Publication number: 20090260990
    Abstract: A porous sintered material is produced which is suitable as an electroosmotic material constituting an electroosmotic flow pump. At least one member selected from BaO, SrO, CaO, TiO2, ZrO2, Na2O and K2O or at least one member selected from a natural mineral substance containing aluminum silicate (e.g., alkali feldspar, kaolinite, petalite), BaSiO3, BaTiO3, BaZrO3, BaSiO3 and SiC is added in the total amount of 0.05 to 10 parts by weight to 100 parts by weight of fused quartz or fused silicate (matrix: SiO2). The matrix may be SiO2—Al2O3 which is composed of either one of fused quartz and fused silicate and fused alumina added thereto.
    Type: Application
    Filed: September 25, 2007
    Publication date: October 22, 2009
    Inventors: Ichiro Yanagisawa, Mitsutaka Fujii, Tomio Ishizuka
  • Publication number: 20090127118
    Abstract: A sample separation/adsorption appliance (100) includes: a first buffer solution tank (1) in which a first electrode (12) is to be disposed; a second buffer solution tank (2) in which a second electrode (22) is to be disposed; and a sample separating section (3) in which a separation medium (33) is to be contained. The sample separating section (3) has a first opening (31) opening into the first buffer solution tank (1) and a second opening (32) opening into the second buffer solution tank (2). The appliance (100) further includes second electrode fixing means (4) for disposing the second electrode (22) oppositely to the second opening (32). Preferably, the appliance (100) further includes adsorption member holding means (5) for holding an adsorption member (6) between the second opening (32) and the second electrode (22) to adsorb sample components which was discharged from the second opening (32) onto the adsorption member (6).
    Type: Application
    Filed: April 18, 2007
    Publication date: May 21, 2009
    Inventors: Yutaka Unuma, Michinobu Mieda, Yuji Maruo, Katsuyoshi Takahashi
  • Publication number: 20090071834
    Abstract: A device is described for pre-concentration and purification of analytes from biological samples (such as human serum, plasma, homogenized solid tissue, etc.) to be analyzed by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry (MALDI MS) and methods of use thereof are provided.
    Type: Application
    Filed: June 9, 2008
    Publication date: March 19, 2009
    Applicant: PROTEIN DISCOVERY, INC.
    Inventors: Dean G. Hafeman, James B. Harkins, IV, Jeremy L. Norris, Sheila N. Baker, Donald R. Loveday, Daniel P. Kuban, Richard M. Caprioli, Charles E. Witkowski, II, Benjamin B. Katz, Salvadore J. Pastor
  • Patent number: 7326326
    Abstract: Proteins can be rapidly separated to a high degree of resolution by electrophoresis on polymeric membranes that have high protein binding capacity. The electrophoretic separation is carried out in a low conductivity, water-miscible organic solvent buffer. The low conductivity of the organic solvent buffer minimizes heat generation, and the water-miscible nature of the organic solvent buffer permits the analysis of hydrophobic and low molecular weight proteins as well as hydrophilic proteins. When electrophoresis is conducted under non-denaturing conditions, it allows the detection of enzymatic activities, protein-protein interactions and protein-ligand interactions.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: February 5, 2008
    Assignee: Temple University-Of The Commonwealth System of Higher Education
    Inventors: Frank N. Chang, Christopher R. Yonan
  • Publication number: 20030127331
    Abstract: A method and device are provided for separating a sample, such as a protein, into its components by two-dimensional electrophoresis wherein instead of bringing the first separation medium, e.g., a fragile elongated gel strip, into contact with a second separation medium, e.g., a gel slab, after the former has been subjected to electrophoresis, the second separation medium is formed or cast in place along the length of the first separation medium only after the latter has undergone electrophoresis separation.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 10, 2003
    Inventor: George T. Leka
  • Patent number: 6365415
    Abstract: The present invention provides a method to characterize, optimize, and control the quality and production of hydrogel media. Additionally, the present invention provides a method for determining the size, size distribution, and spatial distribution of the pores of a porous substrate. More particularly, the invention provides a method for determining the size, size distribution, and spatial distribution of the pores of a polymeric hydrogel-based substrate.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: April 2, 2002
    Assignee: Motorola Inc.
    Inventors: Changming Li, Song Shi, George Maracas, Vi-En Choong